Kit3D is a 3D graphics engine written to work with Microsoft Silverlight. The library is currently written in JavaScript and supports 3D perspective projection and texture mapping. This library allows anyone to easily create 3D content for your Silverlight application.

Silverlight has its roots in WPF. So what better way to get deep that to dig into some code. The WPF team has updated and uploaded to CodePlex the Family.Show app. You can check out the code and documentation here .

Microsoft Surface was just released and even thought I saw some of this technology previewed internally, I have to say I am still wowed (no puns intended )at the final product.
I saw this video below over a year ago at our internal tech conference. I didn't know this thing stuff was this close...